Adding mirrors to volumes

Last published : Jun 19, 2026
Volume mirrors are the exact copies of data of a volume retained in a disk. When you add a mirror to a volume, a copy of the volume is created on the disk which is not already being used by the volume. The Management Server console lets you create the following types of volume mirrors:
  • A datavol volume mirror that keeps a backup of the data in a volume
  • A volume mirror that can be used as a snapshot volume when it is detached from the volume using the mirror break-off snapshot operation
To perform this task, your user group must be assigned the Admin role on the host or the Server perspective. The permission on the host may be explicitly assigned or inherited from a parent Organization.
To add a datavol mirror to a volume
  1. In the Management Server console, go to the Server perspective and expand Manage in left pane.
  2. Expand the Organization or Uncategorized Hosts to locate and select the host.
  3. Expand the host and select Volumes.
  4. Right-click on the required volume and select Add mirror.
  5. In the Add mirror wizard panel, select Add mirror and specify the required information. ClickNext.
See Add mirror - Options.
  1. If you have opted to select the disks manually, select the disks from the Disk selection panel. To search for disks using one or more filter criteria, click Edit. Click** Next**.
See Select Disks panel options.
  1. In the Advanced options for Add mirror panel, specify the required information. Click Next.
See Add mirror - Advanced options.
  1. In the Add mirror summary verify the details that you have specified for adding mirrors. Click Finish.
  2. In the Result panel, verify that the mirrors have been added successfully.
To add a snapshot mirror to a volume
  1. In the Management Server console, go to the Server perspective and expand Manage in left pane.
  2. Expand the Organization or Uncategorized Hosts to locate and select the host.
  3. Expand the host and select Volumes.
  4. Right-click on the required volume and select Add mirror.
  5. In the Add mirror wizard panel, select Add snap-ready mirror and specify the required information. ClickNext.
See Add mirror - Options.
  1. If you have opted to select the disks manually, select the disks from the Disk selection panel. To search for disks using one or more filter criteria, click Edit. Click** Next**.
See Select Disks panel options.
  1. In the Add mirror summary verify the details that you have specified for adding mirrors. Click Finish.
  2. In the Result panel, verify that the mirrors have been added successfully.
See Removing the mirrors of volumes.
See About managing Storage Foundation volumes.